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Today Daf showed good coordination and excellent progress. We began by using a lower ski stem (to eliminate the previous upper ski stemming) to almost trick the body into generating movement of the Centre of Mass into the turn. This prevents any part of the body or skis from being projected towards the outside of the turn. Once we had navigated safely doing this to La Bellecote and then went up the Arpette we recommenced work on the dynamics from the previous sessions starting with skating step turns out of the fall line and then onto basic parallel turns out of the fall line. Complete parallel turns came next and then linked parallel turns – which enables rhythm to be developed. Some very good results are captured above with video.
Remember, speed control comes from finishing the turn practically right across the hill when fighting gravity – but at the same time avoiding going into a traverse and cutting the rhythm.
Feet Forward Technique
“Feet Forward Technique”… gives security through the start of a turn on steep terrain by tightening the turn radius (applies to skis running forward across the slope and not to “pivoting”)
Pushing the outside (uphill initially) foot forward during the turn. The foot never gets in front of the other foot – it just tightens the turn instead.
The exercise is practised with skis off and standing in ski boots. For this static exercise we use ski pole support with the body faced downhill with the uphill foot pointing across the hill and the downhill foot pointing downhill and the heel jammed into the snow. The uphill boot is pulled over onto its inside edge and pushed forwards in a natural arc.
Here is some video of exactly the same action in ice hockey training. In skiing the direction of travel would be straight downhill instead of straight ahead on the flat ice.
Everting the Feet
When the skis are parallel the feet still “diverge” (as if skating) inside the ski boot – each foot being turned outward (everted). This obviously isn’t visible. This is to combat the tendency to twist the foot inwards to”turn” the ski directly -a mistake which flattens the ski and causes loss of grip.
Pressuring the Fronts of the Skis
When a car travelling forward makes a sudden turn there is an increase in pressure on the front tyres due to them being responsible for deflecting the vehicle in the new direction. In skiing the front of the ski plays the main role in deflecting (turning) the skier but this doesn’t just happen automatically because people tend to defensively avoid pressure on the ski fronts due to fear of falling forward.
Normally people when walking maintain their bodies more or less vertical with respect to gravity and that would be appropriate in skiing for traversing across a slope – but as the skier has to turn downhill they are faced with having to adjust the stance out of the vertical and to be generally perpendicular to the slope. Doing so requires both skill and confidence – which can be undermined by a defensive emotional response. (The root of the word emotion is motere, the latin verb “to move”, with the prefix “e-” meaning “move away”.) The result is the skier tends to remain vertical when pointing down the slope and that puts pressure on the tails of the skis (often through leaning on the backs of the ski boots). When pressure is applied to the tails of the skis they will tend to run straight and not turn.
Racing type turns with free falling dynamics (Centre of Mass (CoM) falling or pushed into the turn) can require an aggressive overall body (CoM) movement forward/downhill into a new turn. Pivoted (braking) turns where the skier remains predominantly on the uphill edges and uses a downhill pole plant for support allows the body to remain more vertical due to the mechanics of the skis working with a lateral swing into the turn. However pressure on the ski fronts remains necessary even for effective pivoting. When pivoting it’s sometimes necessary (as with mogul/bump skiing) to push the tips of the skis downhill with the balls of the feet. (Aggressive mogul skiing requires knees and hips actively bending often more than 90°)
Pressure on the ski fronts is made safe through the use of hip angulation – which brings the centre of mass well to the inside of the turn and allows absorption of bumps etc. Angulation protects the skier from the risk of a face plant over the fronts of the skis – including when skiing in deep snow. Another way to increase pressure on the ski fronts is to flex the ankle inside the ski boot – not by squashing the ankle but by lifting the forefoot toward the shin (still keeping pressure on the balls of the feet) and creating shin pressure on the cuffs of the ski boots. The boots then act as a lever transmitting force to the ski fronts. Gripping on ice requires pressure on the ski fronts and is strongly aided by the flexed ankle.
One exercise to get people to feel the correct pressure on the shins inside their ski boots is to ski downhill backwards.
The following subject is to provide further clarity…
Combining Dynamics and Pivot
- Dynamics depends of forward motion of the skis and lateral falling/pushing of the centre of mass
- Pivot depends on lateral motion of the skis – but always with the centre of mass being driven inward (toward the turn centre) modulated by the support of a pole plant
- The two can be combined – when there is both forward and lateral motion – making overall control of trajectory and speed totally under control of the skier
- In all cases there must be active adductor muscle use – and the feet must be “everted” i.e. turned outward inside the ski boots – diverging sightly (skating stance)
- The essential element to take from combining pivot and dynamics is to execute the turn transition from the uphill edge of the uphill ski – noting that the ski enters the new turn more easily than when on its inside edge and this also prevents stemming (and body rotation)
- Additionally with the transition between the two turns being made from the uphill edge it’s easy to switch into a very tight pivot when desired
Look at the skis in the two images below. The top image is with skis carving – the bottom image skis pivoting
You can see here it’s all about the centre of mass – falling/pushing it into a turn then the ski lifting you back up out of the turn… (you don’t even need legs to do it!)
Today’s mountain photos…
